Loose-sheet holder.



No. 785,339. PATENTED MAR. 21, 1905. E. A. TRUSSELL. LOOSE SHEET HOLDER.

APPLICATION FILED MAY 2a', 1904.

UNITED STATES Patented March 21, 1905.

PATENT OFFICE.

EMORY A. TRUSSELL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO SIEBER & TRUSSELLMFG. OO., A CORPORATION OF MISSOURI.

LOOSE-SHEET HOLDER.

SPECIFICATION forming part of Letters Patent No. 785,339, dated March21, 1905.

Application led May 23, 1904:. Serial No, 209,307.

To /l/ZZ 7,071,071?, it may concern:

Be it known that I, EMORY A. TRUssELL, a citizen of the United States,and a resident of St. Louis,State of Missouri,have invented certain newand useful Improvements in Loose- Sheet Holders,of which thefollowingisaspecicompanying d1awings,forming a part thereof. The invention relatesto improvements in iat class of loose-sheet holders in which the eets orleaves are held between a pair of clamping members, the clamping membersconstituting the sides or covers of the holder.

The object of the invention is to supply a simple holder of this class.

The invention consists in the construction and arrangement of partshereinafter described and illustrated in the accompanying drawings, inwhich- Figure 1 is a perspectiveview of the holder. Fig. 2 is a sectionof the holder on the line 2 2 of Fig. 1, showing a few sheets in place.Fig. 3 is a section on the line 3 of Fig. 1. Fig. 4 is a section on theline 4 4. of Fig. 1; and Fig. 5 is a section similarly placed to Fig. 3,but showing a modification in the construction.

The holder comprises thegenerally flat back piece and a sectionalcover-plate made up of the parts 11 and 12, united by a hinge 13, whichextends their entire width, and means for connecting the back and one ofthe front pieces whereby they are firmly pressed toward each other. Thefront and back pieces are made, preferably, of stiff sheet metal. Arectangular portion at each of the rear corners of the back piece is cutaway, and that portion of the back thus reduced in Width is bent overupon itself to form a tubular eye 14 at the rear side. The overturnededge is joined to the main portion of the back, as by means of rivets15. The rear section 12 of the front piece is provided with a pair ofears 16 16, formed of sheet metalcontinuous with its body projectinginwardly and rearwardly and each provided with a hole 17, the center ofwhich coincides with the axis of the tubular eye of the back piece whenthe parts are assembled.

Inclosed inthe tubular eye of the back piece iication and which areillustrated in the acf adjacent to each end is a coil-spring 18, theinner endv19 of which is bent out and sharpened so as to be engaged bythe groove formed by the joiningof the overturned edge of the back pieceonto its main body. The outer end of the spring is secured into aknob orpintle 20, which sets into the end of the tubular eye and extendsoutward therefrom, so that its outer end is Hush with the edges of theback piece. The knob is drilled and threaded in a line coinciding withthe axis of the tube for the insertion of a screw 21, which passesthrough the aperture 17 in the ear 16 and thereby secures the frontpiece to the knob.

A pin 22, set in the knob, vserves to transmit the torsional effect ofthe spring to the front piece whereby the pressing together of the frontand back pieces is secured. One or more holes 23 in the circumference ofthe knob 2O serve for the insertion of a pointed tool for rotating theknob, thereby increasing the tension of the spring and providing for theshifting of the pin 22.

In use the sheets to be bound are held firmly by pressure between theback piece 10 and the inner face of the front piece 12, or, moreaccurately, unless enough sheets are inserted to spread the covers to aparallel position between the back piece 10 and the inner edge of thatplate of the hinge 13 which is secured to the front piece 12. Forinspection of the sheets the front cover 11 may be turned back on thehinge 13 and for the removal or insertion of a sheet the front cover 11is turned back over the tubular portion of the back piece and depressed.The tube thus being a fulcrum foi` the cover, the spring 18 iscompressed and the space between the back and front covers 10 and 12 isincreased.

Instead of employing the screws 21 to secure the front cover 12 to theknobs I may drill the knobs entirely through and use a rod running theentire length of the tube and riveted over at the ends, as shown in Fig.5.

I claim as my invention 1. In a loose-leaf holder, in combination, aback plate having its rear portion bent to form a tube and having itsoverturned edge secured to its body,`a top plate having hinge-lugs opvposing the ends of the tube, pintles set in the tube and engaging thelugs, a torsion-spring housed Within the tube, one end thereof beingengaged between the overturned edge of the back plate and the bodythereof and the other being connected with one of the pintles, a stopset in the pintle and engaging the top plate, a plurality of aperturesbeing provided in the pintle into any one of which the stop may be set.

3. In a loose-leaf holder, in combination, a back plate having its rearportion bent to form a tube and having its overturned edge secured toits body, a top plate having hinge-lugs opposing the .ends of the tube,means for rotatably attaching the hinge-lugs to the tube, and atorsion-spring housed within the tube one end thereof being engagedbetween the overturned edge of the back plate and the body thereof andthe other end being connected With the top plate.

y EMORY A. TRUSSELL. l/Vitnesses:

LEONARD WILooX,

EDWIN W. MILLS.

